{"product_id":"siemens-hqj3b150ha02-circuit-breaker","title":"Siemens | HQJ3B150HA02 | Circuit Breaker | 150A | 3-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens HQJ3B150HA02 Circuit Breaker — a precise, OEM-rated solution designed to protect your 3‑phase electrical system with a solid 150 A rating at 240 V. Built for reliability in maintenance, retrofit, and replacement projects, this breaker is your best bet when exact specifications matter for panel integrity and safety.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 150 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3‑Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240 V\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy choose this Siemens HQJ series breaker\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eOEM fit and performance\u003c\/strong\u003e: As part of the HQJ family, this breaker is engineered to match the form, function, and trip characteristics expected by Siemens panels, minimizing the risk of fit issues or nuisance trips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliable protection\u003c\/strong\u003e: A dedicated 150 A rating provides robust feeder protection for three‑phase circuits, helping safeguard connected equipment and reduce downtime from faults.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSimple maintenance and replacement\u003c\/strong\u003e: Designed for retrofit and replacement tasks, it streamlines upgrades or repairs in existing Siemens installations without guessing about compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eUse cases and practical applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePanel maintenance\u003c\/strong\u003e: Replace a failing or outdated 150 A 3‑pole breaker to restore full protection with minimal panel disruption.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRetrofit projects\u003c\/strong\u003e: Upgrade or reconfigure three‑phase feeders in commercial or industrial panels that require a 150 A 3‑pole 240 V solution.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNew installations in Siemens‑based systems\u003c\/strong\u003e: Ensure consistent protection and compatibility when expanding or updating Siemens electrical infrastructure.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eFit, compatibility, and installation guidance\u003c\/h3\u003e\n\u003cp\u003eTo ensure the best fit, always verify the panel’s labeling and the breaker’s compatibility with Siemens catalogs. The part number HQJ3B150HA02 is the most reliable reference for matching breakers to your panel. Before ordering, confirm that the panel expects a 3‑pole, 240 V unit rated at 150 A. For safe, correct installation, power down the system and follow standard lockout\/tagout procedures, then install per the manufacturer’s guidelines or consult a qualified electrician.\u003c\/p\u003e \u003ch3\u003eWhat problems this solves\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEliminates mismatched replacements by sticking to a precise, OEM part reference.\u003c\/li\u003e \u003cli\u003ePrevents overloading and protects downstream equipment on 3‑phase feeders.\u003c\/li\u003e \u003cli\u003eReduces downtime with a straightforward, drop‑in replacement for compatible Siemens panels.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIn short, the Siemens HQJ3B150HA02 is a purpose‑built circuit breaker for 150 A, 3‑pole, 240 V service — a trusted choice for maintainers, retrofit specialists, and electricians who value accurate compatibility and durable protection in Siemens‑based electrical systems.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46427069382818,"sku":"HQJ3B150HA02","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a0994f42-7fad-49d1-911a-c2784022b8c9.png?v=1765492979","url":"https:\/\/www.ampstate.com\/products\/siemens-hqj3b150ha02-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}